Finding the Fourth Proportional to 389,623.80, 584,435.70 and 296,311.80
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Solution
The fourth proportional to 389,623.80, 584,435.70 and 296,311.80 is: 444,467.70
Step by Step Solution
- Step 1: Write the proportion equation
389,623.80 : 584,435.70 = 296,311.80 : x - Step 2: Convert to fraction form
389,623.80/584,435.70 = 296,311.80/x - Step 3: Cross multiply
389,623.80x = 584,435.70 × 296,311.80 - Step 4: Simplify right side
389,623.80x = 173,175,194,251.26 - Step 5: Solve for x
x = 173,175,194,251.26/389,623.80 - Step 6: Final answer
x = 444,467.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.